<!DOCTYPE html>
<meta charset=utf-8>
<title>window.open in sandbox iframe</title>
<script src="../../../resources/testharness.js"></script>
<script src="../../../resources/testharnessreport.js"></script>
<script src="../../../common/utils.js"></script>
<body>
<script>
promise_test(async test => {
  let message = new Promise(resolve => {
    window.addEventListener("message", event => resolve(event.data));
  });
  let iframe = document.createElement("iframe");
  iframe.sandbox = "allow-scripts allow-popups allow-same-origin";
  iframe.src = "./resources/sandbox-javascript-window-open.html";
  document.body.appendChild(iframe);
  assert_equals(await message, "disallow-document-domain");
});
</script>
